The Florida attorney general is denying that a $25,000 donation from Donald Trump is in any way connected to her office's decision not to pursue action against Trump University, her spokesman said. CNN's Drew Griffin reports.

Medical gel may hold the key to our cyborg future. The biggest challenge to implanting complicated electronics within ourselves is our own immune system's tendency to reject foreign bodies. Xuanhe Zhao, a scientist at MIT, has developed a flexible and sticky plastic gel that will provide an interface between these two very incompatible materials.